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Dermatology. Trichorrhexis nodosa is a defect in the hair shaft characterized by thickening or weak points (nodes) that cause the hair to break off easily. [2] [3] : 636 This group of conditions contributes to the appearance of hair loss, lack of growth, and damaged-looking hair.
The disease is primarily caused by dermatophytes in the genera Trichophyton and Microsporum that invade the hair shaft. The clinical presentation is typically single or multiple patches of hair loss, sometimes with a 'black dot' pattern (often with broken-off hairs), that may be accompanied by inflammation, scaling, pustules, and itching.
The hair follicle is an organ found in mammalian skin. [1] It resides in the dermal layer of the skin and is made up of 20 different cell types, each with distinct functions. The hair follicle regulates hair growth via a complex interaction between hormones, neuropeptides, and immune cells. [1] This complex interaction induces the hair follicle ...
These are packed with vitamin B12, which keeps the scalp and follicles nourished in order to retain growth. The blend of vitamin B improves hair elasticity, reduces dryness and breakage, and ...
3A hair is one of many hair types out there. Read on for expert insight on best practices for maintaining healthy, happy curls. Everything You Need To Know About Type 3A Hair, Per Experts
Hair care. Hair care or haircare is an overall term for hygiene and cosmetology involving the hair which grows from the human scalp, and to a lesser extent facial, pubic and other body hair. Hair care routines differ according to an individual's culture and the physical characteristics of one's hair.
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